Alright I just had a pioneer nex 8000 installed in my 2014 GMC Sierra but I'm having some issues and I want to make sure there not setting issues before I take it back in for starters I do not have the override for the parking break installed yet but anyways I go to use my navigation and it won't let me input any destinations the button is blacked out same with the settings button I also noticed that my unit says unregistered and I have went online and registered the unit at pioneers website